20754620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61043}}^1$

素因数の和:61069

約数の個数: 24

約数和(自身を含む): 46149264

約数和(自身を除く): 25394644

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 61043, 122086, 244172, 305215, 610430, 1037731, 1220860, 2075462, 4150924, 5188655, 10377310, 20754620]

約数ペア:

[(1, 20754620), (2, 10377310), (4, 5188655), (5, 4150924), (10, 2075462), (17, 1220860), (20, 1037731), (34, 610430), (68, 305215), (85, 244172), (170, 122086), (340, 61043)]